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AJvYcCVdrszbegrEI9u8iWDAvyCGfLfp2tvh62IE9HzFyuitnviLj2TwpujEeEIWXRm8FCx3uDcGQDrPhg==@kvack.org X-Gm-Message-State: AOJu0YwpDqomV9IugK2vgqA+1vPAxiSGFTVYUYVrgZVChKy4avqmyXrp judsHgpmzU2oOGsV8T8f2MzNQcdNjPc3ist7Z4MAKEa1U1tgVx0bLQu8rLhd6uSWJMAaQ0lLagW surx4yDpPgdxMhkflE6WmFnbQ1X+qJBEcpHplPNuc X-Gm-Gg: ATEYQzzO4n7wuDL/9BXsesB4FFGcfJzUS9pdRfxwyPIyXaGmTn5jjofvbMOGrOFkhE3 f/kormmq46TdhadVnTpr8tMcn/ace1+H7wGkOI6EMdTbPor9WnTS2HwIqpIQ6a4bUfnZXr5Ly1M OcEPguq36XA7wibx5oAL1uufuq4Ak5bboAYzPtO7CO5m2MIEjEJfHZn52KVNu8v0po0NKhc3v1z /GxLiJ9MJGb/FopOSINq00Fok3UIgRVHlXKK2583KIGaGgZ+aQfpubcWknSuQjrCvB6EP98Gbev yE7pBdaEQRkSmjprkTVRH/yquPm4eJpYm1bwJA== X-Received: by 2002:a05:622a:a987:10b0:507:35b2:6b9 with SMTP id d75a77b69052e-50d3b7cb8ecmr5105641cf.7.1774988103375; Tue, 31 Mar 2026 13:15:03 -0700 (PDT) MIME-Version: 1.0 References: <20260327205457.604224-1-surenb@google.com> <20260327205457.604224-3-surenb@google.com> <5d90d998-9b8d-435c-b684-260600311797@lucifer.local> <20260331112921.854d4f6cc793dba0972ee9f1@linux-foundation.org> In-Reply-To: From: Suren Baghdasaryan Date: Tue, 31 Mar 2026 13:14:51 -0700 X-Gm-Features: AQROBzB2U3UmDFrQdi2wX1twdn7twB7j7RYY85tO9ykEBOm_M_3vRiUWXjbFQEo Message-ID: Subject: Re: [PATCH v6 2/6] mm: use vma_start_write_killable() in mm syscalls To: "Lorenzo Stoakes (Oracle)" Cc: Andrew Morton , willy@infradead.org, david@kernel.org, ziy@nvidia.com, matthew.brost@intel.com, joshua.hahnjy@gmail.com, rakie.kim@sk.com, byungchul@sk.com, gourry@gourry.net, ying.huang@linux.alibaba.com, apopple@nvidia.com, baolin.wang@linux.alibaba.com, Liam.Howlett@oracle.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, lance.yang@linux.dev, vbabka@suse.cz, jannh@google.com, rppt@kernel.org, mhocko@suse.com, pfalcato@suse.de, kees@kernel.org, maddy@linux.ibm.com, npiggin@gmail.com, mpe@ellerman.id.au, chleroy@kernel.org, borntraeger@linux.ibm.com, frankja@linux.ibm.com, imbrenda@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, svens@linux.ibm.com, gerald.schaefer@linux.ibm.com, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: 9c4cbfeqziee4dnx4ssfus811h5g4m5b X-Rspamd-Queue-Id: C3A9D180014 X-Rspam-User: X-Rspamd-Server: rspam03 X-HE-Tag: 1774988104-877132 X-HE-Meta: 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 Kc7dpOQq WM4SF8W33TlYaL0eOczFdyUtSUn4g+qftR09L1tgquRblv309v5/YhLwG5IECIb0633m8nkHQyAPPlBExzB0icSoEuhzSzL6NjTcJgv8VYUuka1ofLfMj+2FJBBIy01jsaoY4/zWJMgH0u99gt8KUk6LZQAM8UirJCbpoaj5dqvnWuTL8DdVLBxOn3/m4+TWXCkS7XcsFr2rX7HbBzU/tmEuy2VDnN4pSVfhL8YzB+DHKk67cqBYrh1Cai9HbooJpIqpPRplFrjcqlR0tJstGnviu0eEdldsGMCQsgUb7SwF9g3d5luTmH0sSgLS4mXaZWdWCcUmnSw28cAq79twwydmzYNP02M4LdVK6HY+wbC+agZFa4vulbqrsy/1Os1jG9lHwWb80z4GqRt3ouHCnQAOg7KO6C0n3d1xRsc/KtxyaHVw= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Mar 31, 2026 at 11:47=E2=80=AFAM Lorenzo Stoakes (Oracle) wrote: > > On Tue, Mar 31, 2026 at 11:29:21AM -0700, Andrew Morton wrote: > > On Tue, 31 Mar 2026 08:01:11 -0700 Suren Baghdasaryan wrote: > > > > > > Instead? That is, assuming we really need to care about this at all= . > > > > > > > > But I think I don't like this change at all? > > > > > > Yeah, this was the part I wasn't sure if it's worth adding. With your > > > vote confirming my scepticism I'll go ahead and remove the parts I > > > added to avoid extra vma_start_write_killable() call (3 instances in > > > all) and will post v7. > > > > Thanks. I'll remove v6 from mm.git and shall await Lorenzo's advice on > > v7. > > > > Ack, if we just drop the problematic bits we might still be fine for 7.1 = :) Let's get your cleanup first and then see where we are. I also hate the way I have to report a fake error code, so with that cleanup the patchset should be much nicer. > > Cheers, Lorenzo